Maximum mileage indicator for vehicle
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorMasahiro Kadota
Life of this patent
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Abstract
A maximum mileage indicator comprises a pressure gauging mechanism including the Bourdon gauge having a pointer for indicating the vacuum in an intake manifold and a speed metering mechanism including an indicator disc or cam board rotated by an angle determined by the vehicle speed, the pointer of the pressure gauging mechanism and the indicator disc or cam board being so arranged as to provide information on whether or not the vehicle is being drived under the maximum mileage condition for the desired vehicle speed.
Claims10
A maximum mileage indicator comprising a pressure sensing mechanism responsive to the vacuum in an intake manifold to drive an indicator means;
- a rotatable means having at least one maximum mileage curve printed thereon with the vacuum scale taken in the radial direction and the vehicle speed scale in the circumferential direction;
- a speed sensing mechanism responsive to the vehicle speed to rotate said rotatable means by an angle proportional to the vehicle speed;
- and
- said indicator means so arranged as to move substantially along the radial line of said rotatable means.
Dependencies are inferred from the claim text.